sutherland



Aug. 7, 1923. 1,463,854 J. SUTHERLAND TOOL FOR CONTRACTING AND BXFANDING SPLIT RIMS Filed April 1, V1922l 4 sheets-sheet 2 Jorv nike/"Zand,

Aug-7,1923. Y 1.463.854 J.y s UTHERLAND' TOOL FOR CONTRACTING AND EXPANDING SPLIT RIlS Fuga Apr-'11 1, m22 4 sheets-sheet s humm Aug. 7, 1923. 1,463,854

` J. SUTHERLAND TOOL FOR CONTRACTING AND XPANDING SPLIT RIMS Filed April l N22 v4 Sheaets--Sl'xeefI 4 l 2/'01170 Same/14710,'

ffnung l lied Simms. residing: at l'mff of "fjifax. remi State im e zwerm d new rad usf:- m Mapu-n '1 "iuwls, .ff-r ifmitrnfzhrxg Expanding fp; Rims, of which the Qm'ng is :iV specification.

Lhis; invention relates to imprm'mnents n 04.65 im Comrgrfzing and Pxpurnng tha li rim@ vwd mi momr vffhies. for hold '.f-rfhj; 'rfe rf um' ring rim muy {gurvri and @un ",ramniy fzntraced and ifmm exgtanwrrr, mui, whrin ik@ @zompnnen parts of the tool wili be s arranged .reise fr@ i@ reduce ihr pussly of mem un La mi uur and ai' the Sum@ frmi fr?? the use mi tlm 001 with co1- nue anni rapidity :ed rbj.ff=.t, in ew and nature, Lm mamma renaiom cnmbixznmr und g nf wif pari@ sei; fmth in und fallwww im Scopri ai he appended claim.

the accompanying drawings: :1r-r L s fragmntnry side @kreation o rin-c :m'zylng rim snowing my improved m applied mratn .Fur comrzlctng the rim. Figure 2 'm a mar View showing the rim contracte-.d bj; my improved mal.

"Gre 3 n mp zan View of the same. Filmre 4 is n mcon fm the line jtl of Fin .E fgure is: a. wrtca sew-ion on their iin@ 5m i922. Serial No. 5%,835

rim at one end thereof i5 rmef wih a depressn 2, while, the siii@ grfl; ni the rim adjau'ent to (me Qni whvri'u :'frffurnxed withlzzning opening l l the upeninggi 'ibemg a anfed za flu mf' Mmm fram w han the VUES L'S 17 formed in the links 16. The threaded ends of the arms 16 are provided with wing nuts 18 to hold the arms and plate 15 in proper position. Threaded t rough an opening 1n the late 15 is a screw 19A having one end forme to engage in the depression 2 and the other end provided with a handle 20.

ln the operation of my tool the hooked ends 6 of the yoke 5 are engaged in the openings 4 and the hooked ends of the links 11 carried by the yoke are engaged in the openings 3 in the rim to be contracted as shown in Figure l. The screw 19 is now o erated to force one end of the rim out o alinement with the adjoining end, thereby breaking the rim so that one end may overlap and ass the other. The yoke or operating member is swung from the position shown in Figure 1 to that illustrated in Figure 2, thereby forcing the ends of the rim into an overlapping position as in Figure and contracting` the rim. Owing to its pivotal connection with the links 11 the plate 15 turns in the sliding of the ends of the rim, thereby permitting the screw 19 to disengage the rim as in Figures 2 and 3. The tire may now be romoved from the rim.

To expand the rim after the tire has been replaced the screw 19 is operated to an inactive position and the yoke 5 swung fro-m the positlon shown in Figure 2 to the position in Figure 1, thereby expanding the rim and bringin the ends into alinement and locking relation.

If desired I may employ a retaining means for holding the operating member in rim contracting position. This retaining means in its present form embodies plates 21 connected with the arms of the yoke 5 adjacent to the cross bar of the yoke by means of bolts 22 equipped with nuts 23 andeX-A pansion springs 24 on the respective bolts between the nuts and the confronting faces of the arms, as clearly shown in Fi ures 6 and S. Hinged or otherwise pivotal y connected with plates are hooked elements 25 designed to engage over the flanges of the rim, asin Figure'S, in order to hold the tool in rim contracting position. The hooked elements are, of course, disengaged from the rim when the tool is operated' to expand the rim. The springs 24 permit free and easy movement of the hooked elements 25 in the use of the tool.

From the foregoing description taker; in connection with the accompanying drawings it will be seen that I have Iovided a tool which may be easily and quickly operated and wherein the component parts are so connected and associated as to give the requisite power for contracting and expanding the rim without ndue exertion on the part of the operator or person using the device. Furthermore, it will be seen that my improved tool may be folded into small compass when not in use and stored away withouttakin up very large space, the arrangement of t e parts being such as to facilitate quick folding of the tool.

Having thus described the invention, what is claimed as new, is

In a tire rim bool, a U-shaped lever having the free ends of its legs provided with means for pivotal and detachable connection 'to the side flanges of a split rim at one side of the split thereof, a pair of parallel links, each having one end pivotally connected to a leg ofythe lever intermediate the ends of the eg and having its other end provided with means for pivotal and detachable connection to a side flange of the rim at the other side of the split, a cross member connecting said links intermedia-te the ends of' the latter, and a screw threaded throu h said cross member for initially breaking t e rim, said cross member being axially rotat able relative to the links for ermitting the swinging of the screw into and out of operative position.

In testimony whereof I aix my signature.

JOHN SUTHERLAND 

